Sir - Wikipedia Sir is a formal honorific address in English for men, derived from Sire in the High Middle Ages Both are derived from the old French " Sieur " (Lord), brought to England by the French-speaking Normans, and which now exists in French only as part of "Monsieur" lit 'my lord'
SIR Definition Meaning - Merriam-Webster The meaning of SIR is a man entitled to be addressed as sir —used as a title before the given name of a knight or baronet and formerly sometimes before the given name of a priest
SIR definition and meaning | Collins English Dictionary You use the expression Dear Sir at the beginning of a formal or business letter or email when you are writing to a man You use Dear Sirs when you are writing to an organization
Sir Definition Meaning | Britannica Dictionary “At ease, lieutenant ” “Yes sir, captain ” Sir, I don't think I was speeding Sir, can you help me with this math problem? Dinner is ready, sir